fixup: tests, WIP

dangerzone/gui/main_window.py

@@ -235,14 +235,15 @@ class MainWindow(QtWidgets.QMainWindow):
         # This allows us to make QSS rules conditional on the OS color mode.
         self.setProperty("OSColorMode", self.dangerzone.app.os_color_mode.value)
 
-        self.show()
-        print("Checking Docker Desktop version")
+        if isinstance(self.dangerzone.isolation_provider, Container):
             is_version_valid, version = (
                 self.dangerzone.isolation_provider.check_docker_desktop_version()
             )
             if not is_version_valid:
                 self.handle_docker_desktop_version_check(is_version_valid, version)
 
+        self.show()
+
     def show_update_success(self) -> None:
         """Inform the user about a new Dangerzone release."""
         version = self.dangerzone.settings.get("updater_latest_version")
@@ -299,8 +300,8 @@ class MainWindow(QtWidgets.QMainWindow):
     ) -> None:
         hamburger_menu = self.hamburger_button.menu()
         sep = hamburger_menu.insertSeparator(hamburger_menu.actions()[0])
-        error_action = QAction("Docker Desktop should be upgraded", hamburger_menu)
-        error_action.setIcon(
+        upgrade_action = QAction("Docker Desktop should be upgraded", hamburger_menu)
+        upgrade_action.setIcon(
             QtGui.QIcon(
                 load_svg_image(
                     "hamburger_menu_update_dot_error.svg", width=64, height=64
@@ -308,23 +309,21 @@ class MainWindow(QtWidgets.QMainWindow):
             )
         )
 
-        def _show_alert() -> None:
         message = """
-            <p>Your Docker Desktop version is too old. Please upgrade to a more recent version.</p>
+        <p>A new version of Docker Desktop is available. Please upgrade your system.</p>
         <p>Visit the <a href="https://www.docker.com/products/docker-desktop">Docker Desktop website</a> to download the latest version.</p>
-            <em>Updating Docker Desktop allows you to have more confidence that you can process your documents safely.</em>
+        <em>Keeping Docker Desktop up to date allows you to have more confidence that your documents are processed safely.</em>
         """
-            widget = Alert(
+        self.alert = Alert(
             self.dangerzone,
-                title="Your Docker Desktop version should be upgraded",
+            title="Upgrade Docker Desktop",
             message=message,
             ok_text="Ok",
             has_cancel=False,
         )
-            widget.launch()
 
-        error_action.triggered.connect(_show_alert)
-        hamburger_menu.insertAction(sep, error_action)
+        upgrade_action.triggered.connect(lambda: widget.launch())
+        hamburger_menu.insertAction(sep, upgrade_action)
 
         self.hamburger_button.setIcon(
             QtGui.QIcon(

dangerzone/isolation_provider/container.py

@@ -12,9 +12,9 @@ from ..util import get_resource_path, get_subprocess_startupinfo
 from .base import IsolationProvider, terminate_process_group
 
 TIMEOUT_KILL = 5  # Timeout in seconds until the kill command returns.
-MINIMUM_DOCKER_VERSION = {
-    "Darwin": "4.35.1",
-    "Windows": "4.35.1",
+MINIMUM_DOCKER_DESKTOP = {
+    "Darwin": "4.36.0",
+    "Windows": "4.36.0",
 }
 
 # Define startupinfo for subprocesses
@@ -203,6 +203,7 @@ class Container(IsolationProvider):
     @staticmethod
     def check_docker_desktop_version() -> Tuple[bool, str]:
         # On windows and darwin, check that the minimum version is met
+        version = ""
         if platform.system() != "Linux":
             with subprocess.Popen(
                 ["docker", "version", "--format", "{{.Server.Platform.Name}}"],
@@ -212,12 +213,15 @@ class Container(IsolationProvider):
             ) as p:
                 stdout, stderr = p.communicate()
                 if p.returncode != 0:
-                    raise NotAvailableContainerTechException("docker", stderr.decode())
+                    # In the case where there were an error, consider that
+                    # the check went trough, as we're checking for installation
+                    # compatibiliy somewhere else already
+                    return True, version
                 # The output is like "Docker Desktop 4.35.1 (173168)"
                 version = stdout.decode().replace("Docker Desktop", "").split()[0]
-                if version < MINIMUM_DOCKER_VERSION[platform.system()]:
+                if version < MINIMUM_DOCKER_DESKTOP[platform.system()]:
                     return False, version
-        return True, ""
+        return True, version
 
     @staticmethod
     def is_runtime_available() -> bool:

tests/gui/test_main_window.py

@@ -7,7 +7,6 @@ from typing import List
 
 from pytest import MonkeyPatch, fixture
 from pytest_mock import MockerFixture
-from pytest_subprocess import FakeProcess
 from pytestqt.qtbot import QtBot
 
 from dangerzone.document import Document
@@ -590,3 +589,48 @@ def test_installation_failure_return_false(qtbot: QtBot, mocker: MockerFixture)
 
     assert "the following error occured" in widget.label.text()
     assert "The image cannot be found" in widget.traceback.toPlainText()
+
+
+def test_up_to_date_docker_desktop_does_nothing(
+    qtbot: QtBot, mocker: MockerFixture
+) -> None:
+    # Setup install to return False
+    mock_app = mocker.MagicMock()
+    dummy = mocker.MagicMock(spec=Container)
+    dummy.check_docker_desktop_version.return_value = (True, "1.0.0")
+    dz = DangerzoneGui(mock_app, dummy)
+
+    window = MainWindow(dz)
+    qtbot.addWidget(window)
+
+    menu_actions = window.hamburger_button.menu().actions()
+    assert "Docker Desktop should be upgraded" not in [
+        a.toolTip() for a in menu_actions
+    ]
+
+
+def test_outdated_docker_desktop_displays_warning(
+    qtbot: QtBot, mocker: MockerFixture
+) -> None:
+    # Setup install to return False
+    mock_app = mocker.MagicMock()
+    dummy = mocker.MagicMock(spec=Container)
+    dummy.check_docker_desktop_version.return_value = (False, "1.0.0")
+    dz = DangerzoneGui(mock_app, dummy)
+
+    load_svg_spy = mocker.spy(main_window_module, "load_svg_image")
+
+    window = MainWindow(dz)
+    qtbot.addWidget(window)
+
+    menu_actions = window.hamburger_button.menu().actions()
+    assert menu_actions[0].toolTip() == "Docker Desktop should be upgraded"
+
+    # Check that the hamburger icon has changed with the expected SVG image.
+    assert load_svg_spy.call_count == 4
+    assert (
+        load_svg_spy.call_args_list[2].args[0] == "hamburger_menu_update_dot_error.svg"
+    )
+
+    # Clicking the menu item should open a warning message
+    menu_actions[0].trigger()

tests/isolation_provider/test_container.py

@@ -13,6 +13,7 @@ from dangerzone.isolation_provider.container import (
 from dangerzone.isolation_provider.qubes import is_qubes_native_conversion
 
 from .base import IsolationProviderTermination, IsolationProviderTest
+import platform
 
 # Run the tests in this module only if we can spawn containers.
 if is_qubes_native_conversion():
@@ -116,6 +117,92 @@ class TestContainer(IsolationProviderTest):
         with pytest.raises(ImageNotPresentException):
             provider.install()
 
+    @pytest.mark.skipif(
+        platform.system() not in ("Windows", "Darwin"),
+        reason="macOS and Windows specific",
+    )
+    def test_old_docker_desktop_version_is_detected(
+        self, mocker: MockerFixture, provider: Container, fp: FakeProcess
+    ):
+        fp.register_subprocess(
+            [
+                "docker",
+                "version",
+                "--format",
+                "{{.Server.Platform.Name}}",
+            ],
+            stdout="Docker Desktop 1.0.0 (173100)",
+        )
+
+        mocker.patch(
+            "dangerzone.isolation_provider.container.MINIMUM_DOCKER_DESKTOP",
+            {"Darwin": "1.0.1", "Windows": "1.0.1"},
+        )
+        assert (False, "1.0.0") == provider.check_docker_desktop_version()
+
+    @pytest.mark.skipif(
+        platform.system() not in ("Windows", "Darwin"),
+        reason="macOS and Windows specific",
+    )
+    def test_up_to_date_docker_desktop_version_is_detected(
+        self, mocker: MockerFixture, provider: Container, fp: FakeProcess
+    ):
+        fp.register_subprocess(
+            [
+                "docker",
+                "version",
+                "--format",
+                "{{.Server.Platform.Name}}",
+            ],
+            stdout="Docker Desktop 1.0.1 (173100)",
+        )
+
+        # Require version 1.0.1
+        mocker.patch(
+            "dangerzone.isolation_provider.container.MINIMUM_DOCKER_DESKTOP",
+            {"Darwin": "1.0.1", "Windows": "1.0.1"},
+        )
+        assert (True, "1.0.1") == provider.check_docker_desktop_version()
+
+        fp.register_subprocess(
+            [
+                "docker",
+                "version",
+                "--format",
+                "{{.Server.Platform.Name}}",
+            ],
+            stdout="Docker Desktop 2.0.0 (173100)",
+        )
+        assert (True, "2.0.0") == provider.check_docker_desktop_version()
+
+    @pytest.mark.skipif(
+        platform.system() not in ("Windows", "Darwin"),
+        reason="macOS and Windows specific",
+    )
+    def test_docker_desktop_version_failure_returns_true(
+        self, mocker: MockerFixture, provider: Container, fp: FakeProcess
+    ):
+        fp.register_subprocess(
+            [
+                "docker",
+                "version",
+                "--format",
+                "{{.Server.Platform.Name}}",
+            ],
+            stderr="Oopsie",
+            returncode=1,
+        )
+        assert provider.check_docker_desktop_version() == (True, "")
+
+    @pytest.mark.skipif(
+        platform.system() != "Linux",
+        reason="Linux specific",
+    )
+    def test_linux_skips_desktop_version_check_returns_true(
+        self, mocker: MockerFixture, provider: Container
+    ):
+        assert (True, "") == provider.check_docker_desktop_version()
+
 
 class TestContainerTermination(IsolationProviderTermination):
     pass